Figure 7.

Multimodality single-photon systems. (a) Dual-modality breast tomosynthesis (DMT) system combining digital x-ray tomosynthesis and limited-angle SPECT. A small high-resolution gamma camera is mounted on a translation stage attached to the gantry arm. The configuration during gamma imaging is shown here. The camera is positioned anteriorly out of the x-ray beam during x-ray imaging. Image courtesy of Dr. Mark Williams, University of Virginia. (b) Combined SPECT/CT system developed at Duke University. Patient is positioned prone and breast is imaged with a small CZT based detector and CT system. Image courtesy of Dr. Martin Tornai, Duke University Medical Center.